Home / 838,705.30-1,257,879.34-239,507.40

Finding the Fourth Proportional to 838,705.30, 1,257,879.34 and 239,507.40

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Solution

The fourth proportional to 838,705.30, 1,257,879.34 and 239,507.40 is: 359,210.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,705.30 : 1,257,879.34 = 239,507.40 : x
  2. Step 2: Convert to fraction form
    838,705.30/1,257,879.34 = 239,507.40/x
  3. Step 3: Cross multiply
    838,705.30x = 1,257,879.34 × 239,507.40
  4. Step 4: Simplify right side
    838,705.30x = 301,271,410,237.12
  5. Step 5: Solve for x
    x = 301,271,410,237.12/838,705.30
  6. Step 6: Final answer
    x = 359,210.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.